Highly exfoliated NiPS3 nanosheets as efficient electrocatalyst for high yield ammonia production
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924157" target="_blank" >RIV/60461373:22310/22:43924157 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1385894721042273" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894721042273</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cej.2021.132649" target="_blank" >10.1016/j.cej.2021.132649</a>
Alternative languages
Result language
angličtina
Original language name
Highly exfoliated NiPS3 nanosheets as efficient electrocatalyst for high yield ammonia production
Original language description
The development of electrocatalytic nitrogen reduction reaction (NRR) at ambient conditions as an alternative to traditional high-temperature ammonia synthesis is a vibrant research topic due to the potential to significantly reduce the energy consumption required for the production of ammonia. Several noble metal-based materials have already been identified as highly active electrocatalysts for this purpose. However, the development of nonprecious metal-based electrocatalysts is necessary for realizing cost-effective ammonia synthesis at large scales. This work has explored the potential of the less exploited transition metal phosphorus trichalcogenide NiPS3 as an NRR electrocatalyst. Excellent NRR activities have been achieved by exfoliating bulk NiPS3 into bi- or trT layered nanosheets. The NH3 yield attained using exfoliated NiPS3 is 118 mu g h(-1) mg(eat)(-1) with a Faraday efficiency of > 17 % at an applied potential of -0.4 V vs RHE. The NRR performance of exfoliated NiPS3 in terms of NH3 yield surpasses many non-noble metal-based catalysts reported in the literature. Further, it also exhibited a stable NRR activity of > 90% even after several repetitive cycles. Plane-wave DFT calculations at the GGA U level have been used to investigate the reaction pathways. It could be shown that the NNR follows an associative mechanism, with the very first hydrogenation step being the potential determining step.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/GC20-16124J" target="_blank" >GC20-16124J: Two-dimensional layered transition metal dichalcogenides/ nanostructured carbons composites for electrochemical energy storage and conversion</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Engineering Journal
ISSN
1385-8947
e-ISSN
1873-3212
Volume of the periodical
430
Issue of the periodical within the volume
15 February 2022
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
nestrankovano
UT code for WoS article
000730111800003
EID of the result in the Scopus database
2-s2.0-85116575543